计步器 Google FIT API

Question

I am currently trying to work with Google Fit API.This is my first App using the API, and I have been mainly by following Google's documentation.

Below is the code that I have which seems to have a problem

The problem I have is that it doesn't seem to be updating the step counter.

public class MainActivity extends Activity
        implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {

        private static final String TAG = "FitActivity";
    //[START Auth_Variable_References]
        private static final int REQUEST_OAUTH = 1;
    // [END auth_variable_references]
        private GoogleApiClient mClient = null;

        int mInitialNumberOfSteps = 0;
        private TextView mStepsTextView;
        private boolean mFirstCount = true;

    // Create Builder View
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            mStepsTextView = (TextView) findViewById(R.id.textview_number_of_steps);
        }


        private void connectFitness() {
            Log.i(TAG, "Connecting...");

            // Create the Google API Client
            mClient = new GoogleApiClient.Builder(this)
                    // select the Fitness API
                    .addApi(Fitness.API)
                            // specify the scopes of access
                    .addScope(new Scope(Scopes.FITNESS_ACTIVITY_READ))
                     .addScope(new Scope(Scopes.FITNESS_LOCATION_READ))
                    .addScope(new Scope(Scopes.FITNESS_BODY_READ_WRITE))
                                    // provide callbacks
                            .addConnectionCallbacks(this)
                            .addOnConnectionFailedListener(this)
                            .build();

            // Connect the Google API client
            mClient.connect();
        }

        // Manage OAuth authentication
        @Override
        public void onConnectionFailed(ConnectionResult result) {

            // Error while connecting. Try to resolve using the pending intent returned.
            if (result.getErrorCode() == ConnectionResult.SIGN_IN_REQUIRED ||
                    result.getErrorCode() == FitnessStatusCodes.NEEDS_OAUTH_PERMISSIONS) {
                try {
                    // Request authentication
                    result.startResolutionForResult(this, REQUEST_OAUTH);
                } catch (IntentSender.SendIntentException e) {
                    Log.e(TAG, "Exception connecting to the fitness service", e);
                }
            } else {
                Log.e(TAG, "Unknown connection issue. Code = " + result.getErrorCode());
            }
        }

        @Override
        public void onActivityResult(int requestCode, int resultCode, Intent data) {
            if (requestCode == REQUEST_OAUTH) {
                if (resultCode == RESULT_OK) {
                    // If the user authenticated, try to connect again
                    mClient.connect();
                }
            }
        }

        @Override
        public void onConnectionSuspended(int i) {
            // If your connection gets lost at some point,
            // you'll be able to determine the reason and react to it here.
            if (i == GoogleApiClient.ConnectionCallbacks.CAUSE_NETWORK_LOST) {
                Log.i(TAG, "Connection lost.  Cause: Network Lost.");
            } else if (i == GoogleApiClient.ConnectionCallbacks.CAUSE_SERVICE_DISCONNECTED) {
                Log.i(TAG, "Connection lost.  Reason: Service Disconnected");
            }
        }

        @Override
        public void onConnected(Bundle bundle) {

            Log.i(TAG, "Connected!");

            // Now you can make calls to the Fitness APIs.
            invokeFitnessAPIs();

        }

        private void invokeFitnessAPIs() {

            // Create a listener object to be called when new data is available
            OnDataPointListener listener = new OnDataPointListener() {
                @Override
                public void onDataPoint(DataPoint dataPoint) {

                    for (Field field : dataPoint.getDataType().getFields()) {
                        Value val = dataPoint.getValue(field);
                        updateTextViewWithStepCounter(val.asInt());
                    }
                }
            };

            //Specify what data sources to return
            DataSourcesRequest req = new DataSourcesRequest.Builder()
                    .setDataSourceTypes(DataSource.TYPE_DERIVED)
                    .setDataTypes(DataType.TYPE_STEP_COUNT_DELTA)
                    .build();

            //  Invoke the Sensors API with:
            // - The Google API client object
            // - The data sources request object
            PendingResult<DataSourcesResult> pendingResult =
                    Fitness.SensorsApi.findDataSources(mClient, req);

            //  Build a sensor registration request object
            SensorRequest sensorRequest = new SensorRequest.Builder()
                    .setDataType(DataType.TYPE_STEP_COUNT_CUMULATIVE)
                    .setSamplingRate(1, TimeUnit.SECONDS)
                    .build();

            //  Invoke the Sensors API with:
            // - The Google API client object
            // - The sensor registration request object
            // - The listener object
            PendingResult<Status> regResult =
              Fitness.SensorsApi.add(mClient,
                      new SensorRequest.Builder()
                      .setDataType(DataType.TYPE_STEP_COUNT_DELTA)
                      .build(),
                      listener);


            // 4. Check the result asynchronously
            regResult.setResultCallback(new ResultCallback<Status>()
            {
                @Override
                public void onResult(Status status) {
                    if (status.isSuccess()) {
                        Log.d(TAG, "listener registered");
                        // listener registered
                    } else {
                        Log.d(TAG, "listener not registered");
                        // listener not registered
                    }
                }
            });
        }

        // Update the Text Viewer with Counter of Steps..
        private void updateTextViewWithStepCounter(final int numberOfSteps) {
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    Toast.makeText(getBaseContext(), "On Datapoint!", Toast.LENGTH_SHORT);

                    if(mFirstCount && (numberOfSteps != 0)) {
                        mInitialNumberOfSteps = numberOfSteps;
                        mFirstCount = false;
                    }
                    if(mStepsTextView != null){
                        mStepsTextView.setText(String.valueOf(numberOfSteps - mInitialNumberOfSteps));
                    }
                }
            });
        }

    //Start
    @Override
    protected void onStart() {
        super.onStart();
        mFirstCount = true;
        mInitialNumberOfSteps = 0;
        if (mClient == null || !mClient.isConnected()) {
            connectFitness();
        }
    }
    //Stop
        @Override
        protected void onStop() {
            super.onStop();
            if(mClient.isConnected() || mClient.isConnecting()) mClient.disconnect();
            mInitialNumberOfSteps = 0;
            mFirstCount = true;
        }

    }

Answer 1

First of all, Follow these steps to enable the Fitness API in the Google API Console and get an OAuth 2.0 client ID.

1. Go to the Google API Console.

2. Select a project, or create a new one. Use the same project for the Android and REST versions of your app.

3. Click Continue to enable the Fitness API.

4. Click Go to credentials.

5. Click New credentials, then select OAuth Client ID.

6. Under Application type select Android.

7. In the resulting dialog, enter your app's SHA-1 fingerprint and package name. For example:

BB:0D:AC:74:D3:21:E1:43:67:71:9B:62:91:AF:A1:66:6E:44:5D:75

com.example.android.fit-example

8. Click Create. Your new Android OAuth 2.0 Client ID and secret appear in the list of IDs for your project. An OAuth 2.0 Client ID is a string of characters, something like this:

780816631155-gbvyo1o7r2pn95qc4ei9d61io4uh48hl.apps.googleusercontent.com

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.Scopes;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.common.api.Scope;
import com.google.android.gms.common.api.Status;
import com.google.android.gms.fitness.Fitness;
import com.google.android.gms.fitness.data.DataPoint;
import com.google.android.gms.fitness.data.DataSource;
import com.google.android.gms.fitness.data.DataType;
import com.google.android.gms.fitness.data.Field;
import com.google.android.gms.fitness.data.Value;
import com.google.android.gms.fitness.request.DataSourcesRequest;
import com.google.android.gms.fitness.request.OnDataPointListener;
import com.google.android.gms.fitness.request.SensorRequest;
import com.google.android.gms.fitness.result.DataSourcesResult;

import java.util.concurrent.TimeUnit;

/**
 * Created by Admin on Dec/8/2016.
 * <p/>
 * <p/>
 * http://stackoverflow.com/questions/28476809/step-counter-google-fit-api?rq=1
 */
public class StackOverflowActivity extends AppCompatActivity
       {

    private static final String TAG = "FitActivity";
    private GoogleApiClient mClient = null;
    private OnDataPointListener mListener;

    // Create Builder View
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    @Override
    protected void onResume() {
        super.onResume();
        connectFitness();
    }

    private void connectFitness() {
        if (mClient == null){
            mClient = new GoogleApiClient.Builder(this)
                    .addApi(Fitness.SENSORS_API)
                    .addScope(new Scope(Scopes.FITNESS_LOCATION_READ)) // GET STEP VALUES
                    .addConnectionCallbacks(new GoogleApiClient.ConnectionCallbacks() {
                                                @Override
                                                public void onConnected(Bundle bundle) {
                                                    Log.e(TAG, "Connected!!!");
                                                    // Now you can make calls to the Fitness APIs.
                                                    findFitnessDataSources();

                                                }

                                                @Override
                                                public void onConnectionSuspended(int i) {
                                                    // If your connection to the sensor gets lost at some point,
                                                    // you'll be able to determine the reason and react to it here.
                                                    if (i == GoogleApiClient.ConnectionCallbacks.CAUSE_NETWORK_LOST) {
                                                        Log.i(TAG, "Connection lost.  Cause: Network Lost.");
                                                    } else if (i
                                                            == GoogleApiClient.ConnectionCallbacks.CAUSE_SERVICE_DISCONNECTED) {
                                                        Log.i(TAG,
                                                                "Connection lost.  Reason: Service Disconnected");
                                                    }
                                                }
                                            }
                    )
                    .enableAutoManage(this, 0, new GoogleApiClient.OnConnectionFailedListener() {
                        @Override
                        public void onConnectionFailed(ConnectionResult result) {
                            Log.e(TAG, "!_@@ERROR :: Google Play services connection failed. Cause: " + result.toString());
                        }
                    })
                    .build();
        }

    }

    private void findFitnessDataSources() {
        Fitness.SensorsApi.findDataSources(
                mClient,
                new DataSourcesRequest.Builder()
                        .setDataTypes(DataType.TYPE_STEP_COUNT_DELTA)
                        .setDataSourceTypes(DataSource.TYPE_DERIVED)
                        .build())
                .setResultCallback(new ResultCallback<DataSourcesResult>() {
                    @Override
                    public void onResult(DataSourcesResult dataSourcesResult) {
                        Log.e(TAG, "Result: " + dataSourcesResult.getStatus().toString());
                        for (DataSource dataSource : dataSourcesResult.getDataSources()) {
                            Log.e(TAG, "Data source found: " + dataSource.toString());
                            Log.e(TAG, "Data Source type: " + dataSource.getDataType().getName());

                            //Let's register a listener to receive Activity data!
                            if (dataSource.getDataType().equals(DataType.TYPE_STEP_COUNT_DELTA) && mListener == null) {
                                Log.i(TAG, "Data source for TYPE_STEP_COUNT_DELTA found!  Registering.");

                                registerFitnessDataListener(dataSource, DataType.TYPE_STEP_COUNT_DELTA);
                            }
                        }
                    }
                });
    }

    private void registerFitnessDataListener(final DataSource dataSource, DataType dataType) {


        // [START register_data_listener]
        mListener = new OnDataPointListener() {
            @Override
            public void onDataPoint(DataPoint dataPoint) {
                for (Field field : dataPoint.getDataType().getFields()) {
                    Value val = dataPoint.getValue(field);
                    Log.e(TAG, "Detected DataPoint field: " + field.getName());
                    Log.e(TAG, "Detected DataPoint value: " + val);

                }
            }
        };

        Fitness.SensorsApi.add(
                mClient,
                new SensorRequest.Builder()
                        .setDataSource(dataSource) // Optional but recommended for custom data sets.
                        .setDataType(dataType) // Can't be omitted.
                        .setSamplingRate(1, TimeUnit.SECONDS)
                        .build(),
                mListener).setResultCallback(new ResultCallback<Status>() {
            @Override
            public void onResult(Status status) {
                if (status.isSuccess()) {
                    Log.i(TAG, "Listener registered!");
                } else {
                    Log.i(TAG, "Listener not registered.");
                }
            }
        });

    }
}

NOTE : :: Sometimes in some device it doestn't detect Step values so whenever you are developing and workling with this code Always Uninstall app and then re-install app. then this works fine.

**Don't forget to add this permission**

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

Answer 2

You can try the StepSensor library from OrangeGangster's .

It contains a custom Service allowing to collect data from the Sensor.TYPE_STEP_COUNTER introduced with Android 4.4 (available only for devices that supports this hardware feature).

Answer 3

This code works for me !

Building the client :

mClient = new GoogleApiClient.Builder(this)
            .addApi(Fitness.SENSORS_API)
            .addScope(new Scope(Scopes.FITNESS_BODY_READ_WRITE))
            .addScope(new Scope(Scopes.FITNESS_ACTIVITY_READ_WRITE))
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .build();

Invoking Sensors API :

private void invokeSensorsAPI() {
    Fitness.SensorsApi.add(
            mClient,
            new SensorRequest.Builder()
                    .setDataType(DataType.TYPE_STEP_COUNT_DELTA) 
                    .setSamplingRate(1, TimeUnit.SECONDS)
                    .build(),
            this)
            .setResultCallback(new ResultCallback<Status>() {
                @Override
                public void onResult(Status status) {
                    if (status.isSuccess()) {
                        Log.i(TAG, "Sensor Listener registered!");
                    } else {
                        Log.i(TAG, "Sensor Listener not registered.");
                    }
                }
            });
}

Recieving data :

@Override
public void onDataPoint(DataPoint dataPoint) { 
  for (Field field : dataPoint.getDataType().getFields()) {
        Value val = dataPoint.getValue(field);
        Log.i(TAG, "Detected DataPoint field: " + field.getName());
        Log.i(TAG, "Detected DataPoint value: " + val);
        final int value = val.asInt();

        if (field.getName().compareToIgnoreCase("steps") == 0) {

                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        tv.setText("Value" + value)
                    }
                });
        }

    }
}

I hope it helps

Answer 4

I think you are making a mistake here

if (resultCode == RESULT_OK) {
    // If the user authenticated, try to connect again
    mClient.connect()
}

instead it should be

if (resultCode != RESULT_OK) {
    // If the user is not authenticated, try to connect again/ resultcode = RESULT_CANCEL
    mClient.connect()
} else {
    onConnected(null);
}

By your code invokeFitnessApis would never be called because you are reconnecting with googleapiclient after successfull connection.